in his demands on the internet that humans are not necessary. we've got with us, derek bartlett, a former s.w.a.t. team member and sniper team member. hopefully the information is correct. everyone is out of the building. this is not a hostage situation. if that is the case, you have an individual, he's armed, he may have explosives. how the s.w.a.t. team who's in contact with him hopefully get him out of there safely and end this? >> well, if things are where they are right now, hopefully you contain him, you contact him, you talk to him. and you give him a chance to air whatever grievance he has and hopefully give up peacefully without injuring anyone in the building or s.w.a.t. officers or himself. obviously the goal is to get everyone out alive. >> absolutely. and if all of the individuals in that building are out, he's in there alone, he's got the microphone, if you will, in that he's in contact with authorities. and at this point, do they simply listen? and the urgency of getting innocent people out of there, it doesn't seem to be the case. . >> we're going to try to talk to him and